13813567 has 2 divisors, whose sum is σ = 13813568. Its totient is φ = 13813566.

The previous prime is 13813561. The next prime is 13813577. The reversal of 13813567 is 76531831.

It is a weak prime.

It is an emirp because it is prime and its reverse (76531831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13813567 - 2⁷ = 13813439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13813561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6906783 + 6906784.

It is an arithmetic number, because the mean of its divisors is an integer number (6906784).

Almost surely, 2^13813567 is an apocalyptic number.

13813567 is a deficient number, since it is larger than the sum of its proper divisors (1).

13813567 is an equidigital number, since it uses as much as digits as its factorization.

13813567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 13813567 is about 3716.6607324317. The cubic root of 13813567 is about 239.9396086476.

The spelling of 13813567 in words is "thirteen million, eight hundred thirteen thousand, five hundred sixty-seven".